/******************************************************************************
 * SAGE - Scalable Adaptive Graphics Environment
 *
 * Module: ppm.h
 * Author : Rajvikram Singh
 *
 * Copyright (C) 2004 Electronic Visualization Laboratory,
 * University of Illinois at Chicago
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either Version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser Public License along
 * with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * Direct questions, comments etc about SAGE to bijeong@evl.uic.edu or 
 * http://www.evl.uic.edu/cavern/forum/
 *
 *****************************************************************************/
 
/* This is a class that reads 24 bit Portable Pixmap image files */

#ifndef PPM_H
#define PPM_H

#define PPMTEXT 1
#define PPMRAWBITS 2
#define BYTES_PER_PIX 3

#include <stdio.h>
#include <iostream>


class ppm {

 private:
	FILE *fp;
	void IgnoreCommentsIfAny();
	char *DoPPMLoad();

 public:
	int widthOfImage, heightOfImage, maxColorValue;
	int imageType;
	char *picture;
	char *Read(char *);

	ppm();

	ppm(char *filename);

	~ppm();

	/* Reverses the RGBA order to AGBR needed for OpenGL */
	void ReverseImage();


};


#endif

